Don't get it wet or get oil on it. It's a tight fit as is and that'll just make 'er swell up. Other than that, I've got no complaints.

Conclusion:

If you have an autococker and you're looking for a bolt: look no further. This bolt is great, you can really drop your operating pressure because the inside of the bolt that channels the air does it so well (a jump of 300 fps to 340 fps from stock to dark bolt). I give it a 9 because...well...nothing's perfect.